Dust-collector.



DUST COLLECTOR. l l APPLICATION FILEDIJUNB19, 1908. 3ISHBBTS SHEET 1..

PATENTED AUG` 4, 1908.

,s..W.vKEYs.V

` DUST GGLLBGTOR. APPLICATION FILED JUNE 19, 1906.

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s. W. KEYS.

DUST COLLECTOR. APPLIO-TION FILED JUNE 19, 1906.

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` on the line SAMUEL W. KEYS, OF PARKVILLE, MISSOURI.

DUs'r-ooLLc'ron.

Specication of Letters Patent.

Patented Aug. 4, 1908.

Application med :rune 19, 190s. i serial No. szaass.

To all whom it may concern: u

Be it known that I, SAMUEL W. KEYS, a citizen of the United States, residing at Parkville, the county of Platte and State of Missouri, have invented certain new and useful Impxrovements in Dust-Collectors, 4of

which t e following-is aspecication.

This invention relates to dust collectors and more especially to that ty e a rotating cylinder' in which th air is discharged, eriplieral receptacles to receive the dust-la en air and retain the dust while permitting the air to esca eto the atmosphere, a conveyer with W ich the peripheral receptacles successively communicate, and means for dischargin l the dust from the said receptacles into sai conveyer, and my object is to produce a machine of this plhaiiacter which operates' fficiently andre- TdT this end the invention consists in certain novel and peculiar features of construc` tion and organization as hereinafter described and claimed; and in order that it may be fully understood reference is to be had to the .accompanying drawings, in-

which- Figure 1, is an end view of a dust collector embodying myiinvention. tion taken mainly on the line II-II of Fig. 1. Fig. 3 is a section taken on the line III-III of Fig. 2. Fi 4, is `an enlarged section taken -IV of Fig. 3. Fig. 5, is a detail outer face view'of one of the longitudinal eripheral bars of the cylinder. Fig. 6, isa etail perspective of an arm of one of the peripheral receptacles and. ofthe contiguous end of the outer wall of said receptacle; said arm and outer wall being detached. Fig. 7, is an ,enlarged detail sectional perspective view of alportion of one of the rin s, one of the bars connecting the rings and t e clampin bar upon the first-named bar. n the said drawings, 1 indicates the lsuporting legs, 2 circular heads bolted to said egs, and 3 air trunks projecting into the Inachine throu h said heads and bearing a rigid relation to t e latter. f

4 indicates a longitudinal shaft extending through and journaled in said heads vertically above the center of the same and rigid with said shaft are spiral blades 5, which by preference, when rotated -in the proper direccomprising e dust-laden Aso as to be capab Fig. 2, is a sec.

tion tend to feed toward the center of the machine.

6 indicates a trou h containing the spiral conveyer and secure 'rigidly as at 7 or otherwise to the heads 2, and provided centrally with a discharge opening 8, with which the upper end of a discharge spout 9 communicates, the opposite end of said spout rojecting throu h one of the heads 2 for t e purpose of, 'elivering .the dust, as hereinafter explained, to a receptacle or conveyer not shown, by which it may be removed from the building or to any point desired. The trou h is provided with a flaring mouth 10, whic projects above the plane of the circumferenceof heads 2 and is equi pcd with flexible `edges 1 1, for a purpose which hereinafter appears. f

12 indicates journaled uponlieads 2,

cally 'impervious to the passage of air, and projecting radially outward from said rings are a pluralit o end walls of ust receptacles hereinafterv described.

14 indicates lugs projgclzting inward from rings 12, and 15long1tu al bars connecting alined lugs of the rings and secured rigidly thereto in any suitable manner, said bars being adapted in the rotation of the machine to engage and swee plast the flexible edges 11 of the mouth o t such passage establish a substantially airtight relation therewith.

The bars 15 have their opposite edges scalloped as shown at 16, so that the scallops at one side shall break joint with those at t e The bars are provi o posite v side. al

e trough and during e of rotating thereon, the l joint being of any suitable character practiarms 13, which form the ded in 'i eir outer faces with grooves 17 parallehng said scalloped margins to receive wire frames 18 around which are secured the inner edges of fabric tubes 19, said frames engaging adably to the bars 15 with an air-tight relation, correspondingly shaped bars or plates 20 (shown as ribbed plates in the'drawings)v fit l jacent bars 15, softhat theirtubes 19 shall ening befooi To secure th'inner ends of the tubes reliagainst the outer faces of said bars and clamp 'i outer walls 23, bein v taining expansive coil range of fla f Walls 32 and a connectingportion 33, the end the frames and fabric tubes reliably thereto as shown most clearly in Fig. 3.

The tubes by preference increase'in size toward their outer ends and at such ends are secured upon frames 21 which are' also scalloped to conform to the frames 17, each frame 21 fitting inthe scallo ed groove 22 in bars 23 forming the outer wa ls of the periphu eral receptacles, the inner bars or plates 24 corresponding in coniiguration to bars or secured to the latter to hold frames 21 an( the outer endsv of the tubes reliably inposition. The outer' walls '23 ofthe receptacles are provided with end notches 25 to slidingly engage ribs 26 of the ring arms or peripheral-receptacle end walls y 13, and said outer walls are provided vwith transverse recesses 27 to receive the inwardly projectingflanges 28 of said end walls 13'.

he latter are provided with pockets 29 consprings'30 which bear outwardly against the outer walls of the peripheral receptacles, and clamp the latter agalnst the inner sides of flanges 8.

31 indicates tapes secured at their o posite ends in any suitable manner to the p ates 20, `and the outer walls of the peripheral receptacles and held normally under tension by the outward pressure of springs 30, it being understood in this connection that the fabric tubes are not under any material tension but are sufficiently long toh'ave more or less lateral` lay or movement between their ends and or this reason vI prefer to make such tubes with their scallops breaking joint or sta gered, as by this arrangement, the tubes wit V1n a givenspace will possess a maximum ping movement without conflict. A hoo ripheral receptacles, comprises vertical end Walls and connecting portion bearing such relation to the peripheral receptacles of the cylinder as to provide a substantially air tight joint from the time such receptacles start into until they emerge from the hood, and saidv hood is preferably carried rigidly by standards 34, secured at their lower ends as at 35 to `the stationary heads 2.

36 is a fan within the hood adapted to-be revolved at a high rate of speed, in any suitable manner, and 37 `a shaft extending through the hood and provided with one or more knocker wheels 38, for knocking upon the outer walls'23 of the receptacles while within the hood, this knocking tending toj ar and vibrate the fabric tubes and thereby assist in dislodging the dust therein, it being understood that the receptacle when engaged by the rotary knocker is vertically above the trough in order that the pass into the latter and'be discharged from the machine, the flexible edges 11 of the flaring mouth of the trough engaging the inner or successively receiving the pedislodged dust may sides of the bars 15 at the opposite sides of the engaged rece tacle. Anvsuitable means may be employe to rotate t e knocker shaft 37, that shown being a pulley 39 driven by a belt 40 and said knocker shaft is' )rovided With a second pulley 41 connected hy a. belt 42 to a pulley 43 on one end of the conveycr shaft to eHect the operation of the conveycr, it being understood of course that other means for operating the conveyer may be employed.

One of the rings of the cylinder'is provided with a gear wheel 44 adapted to be operated intermittently by any suitable means not shown, each intermittent movement of the cylinder corresponding to the distance between adjacent rece tacles, and the hood is of such proportion t rat when any receptacle. is being acted upon, the receding onc forms a closure for one side of t 1e hood and the suc ceeding one a closure for the opposite side ol' the hood. In actual practice the dust-laden air is being blown continuously through thc air trunks 3 into the cylinder, and passes ouiward between the bars l5 into all ol' the rcceptacles except the one which is vertically above the trough. 'The air escapes through the fabric and leaves the dust clinging to the inner sides of the tubes, the tapes at the outer sides of the tubes preventing the latter f rom bulging outward materially under such pressure for t'he purpose of relieving them of considerable strain.

The pressure in the hood is preferably less than that in the cylinder, consequently the pressure in the tubes at opposite sides of the tube in communication with the trough, holds said tubes expanded against the pressure in the hood and-prevents the escape of the air from the hood through said tubes, it being immaterial whether air from the cylinder passes through said tubes forming a elo sure for the opposite sides of the hood because such air by its passage through said tubes will be cleaned and will cooperate with the air from the fan in effecting the collapse or partial collapse of the tube in communication with the trough, this air pressure flirting,r the sides of said tube sharply inward so as to dislodge the dust clinging to the inner side and cause it to pass down with any air passing into said tube from the hood, to the conveyer, whence it is discharged through the spout.

By reason of the peculiar construction of the peripheral receptacles it is obvious that defective fabric tubes may be easily and quickly re laced by perfect ones, all that is necessary eing to remove'the outer walls 23 of contiguous receptacles and'then remove plates v20 at opposite sides of said tube. The tube can then be lifted out of the machine.

From the above description it will be a parent that I have produced a dust colector Elfi llo

` tending substantially end and communicating at its inner endwith said opening and fluted radiallythe flutes of the tu e at opposite sides of said opening being pitched outward from and sta gered with relation to each other, and flexib e sto s exradially of the cy 'nder and longitudinally o and at the outer sides of the tube between the outwardly bowed iiutes of the latter.

2. In a dust collector, acylinder having a peripheral opening, a peri heral receptacle embodying a fabric tube c osed at its outer end and-communicating at its inner end with y said opening andfluted longitudinally, the

j ingly tensioned.

' and said wal to flutes extending radially of the cylinder, and stops extending longitudinally of the tube to relieve the latter of undue tension; said sto s being arranged externally ofthe tube an between the flutes thereof.

3. In a machine of the character described, the combination of a cylinder having a longis tudinally 'extending peripheral opening, a

fabric tube secured at its inner end-to said cylinder around said opening and iuted'longitudinally, the flutes of theetube extending radially of the cylinder, a wall clos' 'the outer end of said tube, arms ri id wit the cylinder and projecting radia y outward therefrom, and springs ressing against said arms and said wall tol liold the tubeyield- 4. In a machine of the character described, the combination of a cylinder having a longitudinally extending peripheral opening, a fabric tube secured atits inner endfto said c linder around said opening and iuted longitudinally, the flutes of thetubeextending radially of the'cylinder, a wall closin the outer endl of said tube, arms ri idv wit the cylinder and projecting radia y outwardtherefrom, s rin pressingagainst said arms lgio d the tube yieldingly tensioned, and means Vfor knockin .the outer Wall against the resistance ofsai s rings.

5. In a machine of the character escr1bed, the combination of a cylinder having a longitudinally extending peripheral opening, a fabric tube secured at its inner'end :to said cylinder around said opening and fluted lonl gitudinallyythe utes of the tube extendingI radially offthe cylinder, a walll closin the outer end of said tube, arms rigid wit the to the c linder and said outer wa c linder and .projecting radially outward t erefrom, s nn ressmgagainst said arms and said wall) tofIib d the tube yieldingly tensioned, means for knocking the outer wall against the resistance of said springs, and flexible stops secured at their opposite ends s and occupying t e flute of said tubes.

6. In a machine of the character described, the combination .of a cylinder having a longif tudinally extending peripheral opening, a

fabric 'tube secured at its inner end to said cylinder around said opening and fluted lonl gitudinally, the flutes of the tube extending radially of the cylinder, a wall closing the outer end of said tube, arms ri id with the cylinder and projecting radia y outward t erefrom, sprinpressmg against said arms and said wal to d the tube yieldingly tensioned, means for knocking theV outer wall a ainst the resistance of said springs, a trouglh within-the cylinder and adapted to receive t e discharge from said tube, and a driven conveyer in said trough.,

7. In a machine of the character described, the combination of a cylinder having a longitudinally extending peripheral opening, a fabric tube secured at its inner end to said cylinderl around said opening and fluted longitudinally, the flutes of ,the tube extending radially of the cylinder, a wall closmg the outer end of said tube, arms riglid with th I outwar cylinder and projecting radia therefrom, s rin s ressing against said'arm's and said wall to Ilo d the tube yieldingly ten? sioned, means for knocking the outer wall against the resistance of said s rings, a trough within the cylinder and a apted to receive the discharge from said tube, a driven conveyer in said trough, a hood enveloping said tube, and means to force air against the outer side of the tube.

8. In a machine of the `character described the combination of supportin' legs, circularheads rigid therewith, air tru to discharge air through said heads, a rotatable cylinder comprising rings journaled on said heads, radial arms projecting outward from` the rin s and longitudinal bars suitably/spaced an connecting said rings, a trough extendin longitudinally between and rigid with sai heads and provided with a spout projecting externally of the machine, a driven conveyer s within the trough, longitudinal walls between the outer ends of opposite radial arms, flexible tubessecured at their outer ends` to said walls and at their inner ends to contiguous longitudinal bars of .said cylinder and communicating with the spaces between said bars; said tubes bein iuted radially of the cylinder'and one of t em in communication with the trough, stops connectin the cylinder with the said outer walls an en aging the flutes of the tubes externally of the atter,

15 -of the cylinder,

a hood to receive the tube incommunication l with the trough, 'provided with opposite openings closed bythe tubes at opposite sides of the first-named tube, and means for y 5 lforcing air through the hood.

10 ripheral receptacle carried by the cylinder and consisting of van outer wall slidable inward and outward of opposite arms, a luted flexible tube arranged radially of the cylinder with the flutes also extending radially correspondingly iluted or scalloped wire frames securedto the opposite ends of the tube, one of said wire frames being secured to the inner side of said outer wall and the other to the outer side of the cyl- 20 inder and around the longitudinal opening thereof to establish communication between the'cylinder and the peripheral receptacle.

10. In a dust collector, a cylinder7 longitudinal bars secured thereto and spaced apart and provided with scalloped grooves in .their outer sides, arms projecting from the cylinder at opposite ends of the opening formed between said longitudinal bars, outer walls connecting said arms and provided in their inner sides with scalloped grooves, frames scalloped to correspond with and litting in said grooves, ilexible tubes mounted at their ends on the scalloped frames iitting respectively in said grooves, plates secured on said spaced bars to clamp thereto the frames engaging the grooves of said bars, and bars secured to the inner sides of the outer walls to clamp the outer frames of the tubes against said outer walls.

In testimony whereof' I ailix my signature, I

in the presence of two witnesses.

SAMUEL Vv'. KEYS. lVitnesses:

H. C. RoDGERs, G.Y. THoRPE. 

